Valve-lifting device



W. W. McNAUGHTON.

VALVE LIFTING DEVICE.

APPLICATION FILED FEB. 16, 1920.

Patented July 12, 1921.

womooavd o0 UNITED STATES PATENT OFFICE.

WILLIAM WALLACE MCNAUGHTON, 0F IBILLINGS, MONTANA.

VALVE-LIFTING DEVICE.

Specification of Letters Patent. Patent ed ily 12, 19 21,

Application filed February 16, 1920. Serial No. 358,823.

To all whom it may concern: 1

Be it known that I, VILLIAM WALLACE MCNAUGHTON, a citizen of the United States, residing at Billings, in the county of Yellowstone and State of Montana, have invented certain new and useful Improvements in Valve-Lifting Devices, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to devices to be" used for compressing and retaining under compression the spring which normally surrounds the valve stem of an internal combustion engine while a retaining pin may be inserted or removed from the valve stem,

' tion of this kind in which leverage is exerted to compress the spring, thus permitting very stiff springs of relatively large size to be readily compressed.

A further object is to provide a device of the character described which is adjustable as to length and is also adjustable in a direction at right angles to its length so that it may be used with engines of varied sizes or shapes without dismantling the engine or removing the manifold or other parts.

A further object is to provide a device of this character with means at its lower end for engagement with a' valve stem, this means being in the form of an adjustable claw whereby it may be used upon valve stems of different sizes.

A. further object is to provide a device of this character which is simple in construction and may be easily assembled or disassembled and will occupy but little space Fig. 2 is an edge elevation of the construction shown in Fig. 1, partly broken away;

Fig. 3 is a perspective view of the upper section of the movable portion of the spring compressor 1 Figs. 4 and 5 are perspective views of the second and third sections respectively;

Fig. 6 is a plan view of the claw;

Fig. 7 is a top plan view of the horizontal foot of part 20;

Fig. 8 is a side elevation of a modified form of terminal member.

Referring to these drawings, it will be seen that I provide a supporting frame section, designated generally 10, which is angular in form, that is provided with a limb or arm 11 extending vertically upward from the body 10, and-a limb or arm 12 extending vertically downward from the body 10, at the opposite end of the body 10 from the limb 11. The limb 11 at its upper extremity is provided with a perforation 13 having therein a pivoted latch 14. Midway of its length the limb 11 is provided with a strap iron loop 15 extending from one face of the rod from which the section 11 is made. At the lower end of the limb 11 there is provided a loop 16 which is open at one end. The body portion 10 is perforated, as at 17, and the limb 12 is provided along its length with a series of equi-distantly spaced perforations 18 and at its lower end with. an open collar 19.

Coacting with the limb 11 is a right angular rod 20, one edge of which is provided with the teeth 21. The angular arm 22 of this rod is thickened at a plurality of points, as at 23, and these thickened portions are interiorly screw-threaded for engagement by a screw 2% having a wing head or other means whereby it may be rotated.

Coacting with the section 10 of the frame is a second section 25 which has the form of an obtuse angle, and is made of a relatively flat rod. 'The vertical portion 26 of this section is perforated at a plurality of .points, as at 27 ,these perforations being adapted to register with the perforations 18 of the wing 12 of section 10, and the up '10. Each of the loops or collars 19 and 28 is perforated for the passage of bolts 30,

Thus it will be seen that the vertical portion 26 of the section has telescopic engage ment with the limb 12 of sectionlO and may be held in any adjusted position by the bolts 30. The lower portion of section 25 extends downward and inward, that is to a position approximately beneath the vertical limb 11 and is provided with a plurality of perforations 31 and at its lower end with a collar or upwardly extending loop 32.

Coacting with this section 25 is a third section 33 which is provided with perforations 34 adapted to register with the perforations 31 and which is formed in its upper end with an open loop 35 adapted to embrace the section 25, the loop 32 of the section 25, of course, embracing this section 33 so that the section 33 has telescopic, adjustable engagement on the section 25. The lower extremity of the section 33 is angularly bent and deflected into a plane at right angles to the plane of section 33 to form a 1 pierced eye 36, and pivoted by a bolt 37 to this eye are the oppositely disposed jaws 38,

these jaws being tapered toward their extremities and disposed in the same plane.

By loosening up on the bolt 37, these jaws may be adjusted nearer to or farther from each other and then the bolt tightened to hold the jaws in their adjusted position;

Pivotally mounted upon the section 10 by meansof a bolt or pivot pin passing through the perforation 17 is a lever 39, the shank of which is notched, as at 40, for engagement with the latch loop 14, and the lower end of which is angularly bent and section 42 at itsextremity is deflected into i formed as a sector gear 41 having teeth which mesh with the rack teeth 21 on member 20. It will be obvious, therefore, that when this lever is oscillated, the member 20 will be reciprocated.

While under most circumstances the three sections 10, 25 and 33 will fit a large num ber of different makes of engines, yet under some circumstances it is necessary to use in section 42 which is also made of a flat piece of metal, this section having a vertical limb formed with perforations 43 adaptedto register with the perforations 18 and being formed at its upper end with the open loop 44 adapted toembrace the lug 12 of section 10. The laterally extending limb of this a plane at right angles into the plane of the section 42 and pierced, as at 45, for the reception of the bolt 37 which engages the jaws 38'with'the section 42. The section 42 is providediin order to give a new and different angle for the frame of the device and permit'the device to be used upon certainwell known makes of gas engines where the frame as previously described is incapable of use, V

In the practical use of my device, the

length of the framecomposed of the members 10,25 and 33 or of the sections 10 and 42 is adjusted to the size and make of the engine valve and of the engine.

7 The jaws 38 are adjusted toward or from each other to fit the size and shape of the valve stem. 7

I The arm 22 of member 20 is disposed across the head of the cylinder, and the screw 24 is adjusted against the head of the .valve in" theusual and ordinary manner. The jaws 38 are then inserted above the retaining pin in the valve stem and below the valve spring.

valve spring to be readily removed and re,-

placed. 7 i It will be seen that this tool is adjustable both as to length-and laterally to fit enk gines of a large number of diiferentsizes, and that the screw-threaded pin 24 maybe adjusted in any one of the openings 23 so as to center the pin upona valve head. The

leverage exerted is relatively great so that it has been found in practice that very heavy springs may be readily compressed to permit the removal of the spring and pin. The device may be readily disassembled byremovframe together and when so disassembled the parts take up very little room and can be easily packed for carriage for transportation;

It will be seen that I providea construc-j tion of this character formed, generally considered, in two sectionsmovable; with rela-' tion to each other, one of said sections havtion being provided atits lower end witha claw or foot inserted above theretaining pin and the valve stem and belowthe valve spring and preferably made-with; opposed jaws which are adjustableto fit the valve stem. It will be likewise seen that not only the lever operates to compress the spring, but that this is likewise attained by rotating the bolts which hold the sections of the ing the screw 24 so as to adjust the height 2 of the supporting member 20 above the head,

of the valve; 7 r

I claim:-' e e 1. An iLdjUStELbIQ'X HJVB lifter and spring I compressor comprising a member "adapted and having a horizontal portion provided to be disposed over. the head of a cylinder Q passing through the aperture, said member having a vertical portion, a second member vertically slidable upon the vertical portion of the first named member, said second named member extending outward, then downward, and then inward, and being formed of a plurality of adjustable sections, the extremity of the second named member being provided with a claw for insertion beneath a valve spring and around a valve stem, and a lever mounted upon one of said members and operatively engaging the other member to cause the rotation of the second named member upon the operation of the lever in one direction.

2. An adjustable valve lifter and spring compressor comprising a member having a horizontal and a vertical portion, the horizontal portion being formed with a plurality of screw-threaded apertures, a bearing screw adjustable through one of said apertures, a second member having a vertical portion sliding upon the vertical portion of the first named member and at the lower end of this vertical portion ex tending outward, then downward, and then laterally to a position beneath the screw and being there provided with a claw insertible around a valve stem and beneath the spring, the second named member being composed of a plurality of sections whereby it may be vertically adjusted as to length and laterally adjusted to cause the claw to register with the ad justment of the screw, and a lever mounted upon one of said members and operatively engaging the other member whereby the second named member may be lifted relative to the first named member.

3. An adjustable valve lifter and spring compressor comprising a supporting member having a horizontal and a vertical portion, a screw passing through the horizontal portion, the vertical portion of the supporting member being toothed at its lower end, a second member slidingly mounted upon the vertical portion of the first named member and extending outward from the first named member, then downward, and then inward, and carrying a claw at its lower end, the claw being disposed beneath the screw, and a lever mounted upon the second named member and having a sector gear engaging with the teeth of the first named member whereby the second named member may be lifted relative to the first named member.

4:. An adjustable valve lifter and spring compressor comprising a supporting member adapted to be disposed over the upper end of an engine cylinder and having a horizontal portion and a vertical portion the horizontal portion being provided with a plurality of screw-threaded apertures, a screw adjustable in any one of said apertures, the vertical portion of the supporting member being toothed and having a horizontally disposed loop, a second member formed in sections, one of said sections having a vertical portion carrying a horizontally disposed loop, the vertical portion being adapted to be engaged with the loop of the vertical portion of the supporting member, and the loop of the said section of the second named member being open and adapted to be engaged with the vertical portion of the first named member, a second section vertically adjustable upon the first named section, and a third section adjustably mounted upon the second named section for adjustment laterally and carrying a claw at its lower end adapted to embrace a valve stem and be disposed beneath the spring thereof, and a lever pivoted upon the first named section of the second member and having a sector gear engaging with the teeth on the first named member whereby the second named member may be raised and lowered.

5. An adjustable valve lifter and spring compressor comprising a supporting memher adapted to be disposed over the upper 7 end of an engine cylinder and having a horizontal portion and a vertical portion, the horizontal portion being provided with a plurality of screw-threaded apertures, a screw adjustable in any one of said apertures, the vertical portion of the supporting member being toothed and having a horizontally disposed loop, a second member formed in sections, one of said sections having a vertical portion carrying a horizontally disposed loop, the vertical portion being adapted to be engaged with the loop of the vertical portion of the supporting member, and the. loop of the said section of the second named member being open and adapted to be engaged with the vertical portion of the first named member, a second section vertically adjustable upon the first named section and having its lower end extending down ward and toward the axis of said screw, and a third section slidably mounted upon this downwardly and laterally extended portion of the second named section for adjustment longitudinally therealong, said third named section at its lower end having a horizontally disposed claw adapted to be disposed beneath and in alinement with the screw and to embrace a valve stem and to be disposed beneath the spring thereof, and a lever mounted upon the first named section of the second member and having a sector gear engageable with the teeth on the vertical portion of the first named member.

In testimony whereof I hereunto affix my signature. 

